Dr. Ilka Kleinhanns
(married Schönberg)
Address
Universität Tübingen GUZ
Isotopengeochemie
Schnarrenbergstrasse 94-96
72076 Tübingen
Office: Room 6U05, GUZ
Phone: +49-(0)7071-29-78908
Fax: +49-(0)7071-29-3060
Mail: kleinhanns(at)ifg.uni-tuebingen.de
Fields of study
- Igneous isotope geochemistry
Research
- Crust-mantle interaction in the Massif Central (France)
- high-T stable isotope fractionation of mantle processes and melt formation (Barberton Greenstone belt, South Africa & Pyrenees, France)
- Chromite formation and magmatic history of the Bushveld Complex (South Africa).
Short CV
since 2010 | Research Scientist at the Isotope Geochemistry Group, University of Tübingen, Germany |
2008-2010 | Associate Professor for Geochemistry at the University of Bergen, Norway |
2005-2008 | Research Fellow and Lab Manager of the Radiogenic Isotope Facilities at the Geoscience Centre, University of Göttingen, Germany |
2003 | PhD at the Institute of Geological Sciences, University of Bern, Switzerland |
1999 | Diploma in Geology/Palaeontology at the Geoscience Centre, University of Göttingen, Germany |
Publications
2021 - today
- Wagner LJ, Kleinhanns IC, Varas-Reus MI, Rosca C, König S, Bach W & Schoenberg R (2023): Light stable Cr isotope compositions of mid-ocean ridge basalts: Implications for mantle source composition. Geochimica et Cosmochimica Acta; https://doi.org/10.1016/j.gca.2023.04.028
- Havsteen JC, Kleinhanns IC, Schröder S, Eickmann B, Izon G, Gogouvitis MG, Ngobeli R, Beukes NJ & Schoenberg R (2023): Evidence for contemporaneous deposition of the Duitschland and Rooihoogte formations (Transvaal Supergroup): Implications for tempo and mode of Earth’s Great Oxidation. Precambrian Research 391: 107055, https://doi.org/10.1016/j.precamres.2023.107055
- Engvik AK, Corfu F, Kleinhanns IC, Elvevold S (2021): Banded Charnockite: The Result of Crustal Magma Generation, Piecemeal Emplacement, and Fluid-Driven Mineral Replacement in High-Grade Crust (Central Dronning Maud Land, Antarctica). The Journal of Geology 129(4). https://doi.org/10.1086/715789
- Wagner JL, Kleinhanns IC, Weber N, Babechuk MG, Hofmann A, Schoenberg R (2021): Coupled stable chromium and iron isotopic fractionation tracing magmatic mineral crystallization in Archean komatiite-tholeiite suites. Chemical Geology https://doi.org/10.1016/j.chemgeo.2021.120121
- Kleinhanns IC, Nägler TF, Villa IM, Kramers JD (2021): Age disequilibrium between zircon and their granitoid hosts caused by intracrustal reworking: Nd-Hf-Ar isotope evidence of Archaean Granitoids from Barberton Mountain Land (Kaapvaal craton, South Africa). Chemical Geology https://doi.org/10.1016/j.chemgeo.2021.120129
- Wegwerth A, Plessen B, Kleinhanns IC, Arz HW (2021): Black Sea hydroclimate and coupled hydrology was strongly controlled by high-latitude glacial climate dynamics. Communications Earth & Environment 2, 63 (2021). doi.org/10.1038/s43247-021-00129-3
2016 - 2020
- André L, Abraham K, Hofmann A, Monin L, Kleinhanns IC, Foley S (2019): Early continental crust generated by reworking of basalts variably silicified by seawater. Nature Geoscience, doi: 10.1038/s41561-019-0408-5.
- Babechuk MG, Weimer NE, Kleinhanns IC, Eroglu SE, Swanner ED, Kenny GG, Kamber BS, Schoenberg R (2019): Pervasivelyanoxic surface conditions at the onset of the Great Oxidation Event: New multi-proxy constraints from the Cooper Lake paleosol. Precambrian Research 323: 126-163.
- Brodbeck M, Ubide T, Kleinhanns IC, Schoenberg R, Kamber BS (2019): Quantitative data extraction from Orthopyroxene trace element maps and its potential to examine the formtation of the UG2 unit, Bushveld complex. Minerals (9) 73; doi:10.3390/min9020073.
- Wegwerth A, Dellwig O, Wulf S, Plessen B, KLeinhanns IC, Nowaczyk NR, Jiabo L, Arz HW (2019): Major hydrological shifts in the Black Sea “Lake” in response to ice sheet collapses during MIS 6 (130e184 ka BP). Quarternary Science Reviews 219: 126-144; DOI: doi.org/10.1016/j.quascirev.2019.07.008
- Walter BF, Gerdes A, Kleinhanns IC, Dunkl I, von Eynatten H, Kreissl S, Markl G (2018):The connection between hydrothermal fluids, mineralization, tectonics and magmatism in a continental rift setting: Fluorite Sm-Nd and hematite and carbonates U-Pb geochronology from the Rhinegraben in SW Germany. Geochimica et Cosmochimica Acta 240: 11-42.
- Eroglu S, Schoenberg R, Pascarelli S, Beukes NJ, Kleinhanns IC, Swanner ED (2018): Open ocean vs. continentally-derived iron cycles along the Neoarchean Campbellrand-Malmani Carbonate platform, South Africa. American Journal of Science 318: 367- 408.
- Albut G, Babechuk MG, Kleinhanns IC, Benger M, Beukes NJ, Steinhilber B, Smith AJB, Kruger SJ, Schoenberg R (2018) Modern rather than Mesoarchaean oxidative weathering responsible for the heavy stable Cr isotopic signatures of the 2.95 Ga old Ijzermijn iron formation (South Africa). Geochimica et Cosmochimica Acta 228: 157-189.
- Babechuk GB, Kleinhanns IC, Reitter E, Schoenberg R (2018): Kinetic stable Cr isotopic fractionation between aqueous Cr(III)-Cl-H2O complexes at 25 °C: implications for Cr(III) mobility and isotopic variations in modern and ancient natural systems. Geochimica Cosmochimica Acta 222: 383-405.
- Wille M, Babechuk MG, Kleinhanns IC, Stegmaier J, Suhr N, Widdowson M, Kamber BS, Schoenberg R (2018): Silicon and chromium stable isotopic systematics during basalt weathering and lateritisation: A comparison of variably weathered basalt profiles in the Deccan Traps, India. Geoderma 314:190-204.
- Wu W, Swanner ED, Kleinhanns IC, Schoenberg R, Pab Y, Kappler A (2017): Fe isotope fractionation during Fe(II) oxidation by the marine photoferrotroph Rhodovulum iodosum in the presence of Si - implications for Precambrian iron formation deposition. Geochimica et Cosmochimica Acta 211: 307-321.
- Swanner ED, Bayer T, Wu W, Hao L, Obst M, Sundman A, Byrne JM, Michel M, Kleinhanns IC, Kappler A, Schoenberg R (2017): Iron isotope fractionation during Fe(II) oxidation mediated by the oxygen-producing marine cyanobacterium Synechococcus PCC 7002. Environmental Science & Technology 51(9): 4897-4906.
- Babechuk MG, Kleinhanns IC, Schoenberg R (2017): Chromium geochemistry of the ca. 1.85 Ga Flin Flon paleosol. Geobiology 15, 30-50.
- Schoenberg R, Merdian A, Holmden C, Kleinhanns IC, Hassler K, Wille M, Reitter E (2016): The stable Cr isotopic compositions of chondrites and silicate planetary reservoirs. Geochimica et Cosmochimica Acta 183, 14-30.
2011 - 2015
- Jacobs J, Elburg M, Laeufer A, Kleinhanns IC, Henjes-Kunst F, Estrada S, Ruppel AS, Damaske D, Montero P, Bea F (2015): Two distinct Late Mesoproterozoic/Early Neoproterozoic basement provinces in central/eastern Dronning Maud Land, East Antarctica: The missing link, 15-21 degrees E. Precambrian Research 265, 249-272.
- Kleinhanns IC, Becker T, Wilsky F, Nolte N, Hansen BT, Fliegel D and Klemd R (2015): U-Pb zircon ages and (isotope) geochemical signatures of the Kamanjab Inlier (NW-Namibia): constraints on Paleoproterozoic crustal evolution along the southern Congo craton. Geological Society, London, Special publications 389, 165-195.
- Kleinhanns IC, Whitehouse MJ, Nolte N, Baero W, Wilsky F, Hansen BT, Schoenberg R (2015): Mode and timing of granitoid magmatism in the Västervik area (SE Sweden, Baltic Shield): Sr-Nd isotope and SIMS U-Pb age constraints. Lithos 212-215, 321-337.
- Hansen BT, Wemmer K, Putthapiban P, Kleinhanns IC, Wilsky F (2014): Do U/Pb-SHRIMP Dating and Pb Stepwise Leaching (PbSL) Analyses Confirm the Lack of Precambrian Basement Outcrops in Thailand?. Open Journal of Geology 4: 505-517.
- Wegwerth A, Dellwig O, Kaiser J, Ménot G, Bard E, Shumilovskikh L, Schnetger B, Kleinhanns IC, Wille M, Arz HW (2014): Meltwater events and the Mediterranean reconnection at the Saalian-Eemain transition in the Black Sea. Earth and Planetary Science Letters 404, 124-135.
- Villa IM, Bucher S, Bousquet R, Kleinhanns IC, Schmid S (2014): Dating polygenetic metamorphic assemblages along a transect across the Western Alps. Journal of Petrology 55(4): 803-830.
- Wille M, Nebel O, Van Kranendonk MJ, Schoenberg R, Kleinhanns IC, Ellwood MJ (2013): Mo-Cr isotope evidence for a reducing Archean atmosphere in 3.46-2.76 Ga black shales from the Pilbara, Western Australia. Chemical Geology 340: 68-76.
- He Y, Li S, Hoefs J, Kleinhanns IC (2013): Sr-Nd-Pb isotopic compositions of early Cretaceous granitoids from the Dabie orogen: Constraints on the recycled lower continental crust. Lithos 156-159, 204-217.
- Kleinhanns IC, Fischer-Gödde M, Hansen BT (2012): Sr-Nd isotope and geochemical characterisation of the Paleoproterozoic Västervik Formation (Baltic Shield, SE-Sweden): a southerly exposure of Svecofennian metasiliciclastic sediments. International Journal of Earth Sciences 101 (1): 39-55.
- Nolte N, Kleinhanns IC, Baero W, Hansen BT (2011): Petrography and whole-rock geochemical characteristics of Västervik granitoids to syenitoids, southeast Sweden: constraints on petrogenesis and tectonic setting at the southern margin of the Svecofennian domain. GFF 133 (3-4): 173-196.
- Martínez Dopico CI, López de Luchi MG, Rapalini AE, Kleinhanns IC (2011): Crustal segments in the North Patagonian Massif, Patagonia: An integrated perspective based on Sm-Nd isotope systematic. Journal of South American geology. 31, 324 – 341.
2006 - 2010
- Be'eri-Shlevin Y, Katzir Y, Blichert-Toft J, Kleinhanns IC, Whitehouse MJ (2010): Nd-Sr-Hf-O isotope provinciality in the northernmost Arabian-Nubian Shield: implications for crustal evolution. Contributions to Mineralogy and Petrology 160, 181 – 201.
- Be’eri-Shlevin Y, Katzir Y, Whitehouse MJ, Kleinhanns IC (2009): Contribution of pre Pan-African crust to formation of the Arabian Nubian Shield: new SIMS U-Pb and O studies of zircon. Geology 37, 899-902.
- Rufer D, Buettner A, Kleinhanns IC, Villa IM (2007): Yes there is, but why would anybody care? DISCUSSION. Lithos 95 (3-4), 462-464.
2002 - 2005
- Buettner A, Kleinhanns IC, Rufer D, Hunziker JC, Villa IM (2005): Magma generation at the easternmost section of the Hellenic arc: Hf, Nd, Pb and Sr isotope geochemistry of Nisyros and Yali volcanoes (Greece). Lithos 83 (1-2), 29-46.
- Kleinhanns IC, Kramers JD, Kamber BS (2003): Importance of Water for Archaean Granitoid Petrology: a comparative study of TTG and potassic granitoids from Barberton Mountain Land, South Africa. Contributions to Mineralogy and Petrology 145, 377-389.
- Kleinhanns IC, Kreissig K, Nägler ThF, Kamber BS, Meisel T, Kramers JD (2002): Combined chemical separation of Lu, Hf, Sm, Nd, and REEs from a single rock digest: Precise and accurate isotope determination of Lu-Hf and Sm-Nd using multicollector-ICPMS. Analytical Chemistry 74 (1), 67-73.